/**
* Translation helper method
* @param null $locale
* @return mixed|null|\Ojs\JournalBundle\Entity\AuthorTranslation
*/
public function translate($locale = null)
{
if (null === $locale) {
$locale = $this->currentLocale;
}
if (!$locale) {
throw new \RuntimeException('No locale has been set and currentLocale is empty');
}
if ($this->currentTranslation && $this->currentTranslation->getLocale() === $locale) {
return $this->currentTranslation;
}
$defaultTranslation = $this->translations->get($this->getDefaultLocale());
if (!($translation = $this->translations->get($locale))) {
$translation = new AuthorTranslation();
if (!is_null($defaultTranslation)) {
$translation->setTitle($defaultTranslation->getTitle());
$translation->setSummary($defaultTranslation->getSummary());
}
$translation->setLocale($locale);
$this->addTranslation($translation);
}
$this->currentTranslation = $translation;
return $translation;
}